My 2012 & 2013 Sahara both have the same issue. The heater fan works fine in all positions except the floor. I can get no air to blow on the floor in either floor setting. I can feel a quick puff of air on the floor when i switch the setting but then nothing more.

Not a huge issue but seems kinda odd. Just thought I would do a check here before I run it into the dealer.

My 2013 JKU just went in for service with the floor setting not working (which sucks in this cold btw). Service claimed they had a bulletin that said to factory reset it. This is the second time we had it serviced for this reason. The first time they replaced the module and it worked good for awhile. Hopefully it doesn't come back.

Well ... update on the whole factor reset thing... It didn't work. I went to take it out from the dealer, shut off the key, put it to fan to full and on floor, turned on engine... and it just keeps coming out of the top vents. The service guy was like... HUH... HUH... So now it's going for more than a day they already replaced something in there when I first had the problem, maybe 3rd time will be the charm?

Ok so apparently Chrysler said to check for moisture in the heater box. They pulled it off and a ton of water came out they said. They tracked it back to a hole that was drilled and not sealed off in the snorkel install. I'll get more details this afternoon but we did have a problem that was reported before the snorkel was installed. I'm not sure what hole was left unsealed but I don't remember making any hole that should impact water getting inside.